Since 1994, Italian politics has seen a number of coalitions including parties whose identity has been strongly based on their ‘outsider’ status as uncompromising opposition movements which would not previously consider government participation. This article examines the contrasting experiences in office of two such parties: the regionalist populist Lega Nord (LN) and the radical left Rifondazione Comunista (RC). While the LN confounded expectations not only simply by remaining in the centre-right coalition from 2001 to 2006, but by influencing policy, increasing its vote-share and maintaining its ‘outsider’ identity, RC was unable to match its fellow outsider’s success when it served in the centre-left government from 2006 to 2008. Looking at the experiences in office of the RC and the LN in terms of ‘before’, ‘during’ and ‘after’ government, this article seeks to analyse and explain the differing experiences and effects of government on the two parties.